Gear casing



FIG. 1 is an axonometric view of a gear casing showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view thereof; and,

FIG. 8 is a cross-sectional view taken along line 8--8 of FIG. 2. 

The ornamental design for a gear casing, as shown and described. 